37 renting of machines, tools and devices for civil engineering and building construction; renting of products involving electrical engineering, electronics and computer science, in particular measuring and test devices and related computer equipment; civil engineering and building construction; repair of appliances, devices and equipment in the fields of electrical engineering, electronics, optics and precision mechanics; installation, overhaul, maintenance, renovation, recycling and reconstruction of technical equipment and products involving electrical engineering, electronics, optics and precision mechanics and of tools, land vehicles, aircraft and watercraft, buildings including their technical facilities, production and storage facilities of industry and trade including power generation and distribution facilities, including restoration of damage caused by environmental effects, by the occurrence of events causing damage (eg damage caused by fire, water, acids and dust) or by toxic substances and which affects or endangers the serviceability of the technical equipment; overground workings, underground workings and civil engineering; installation, assembly, maintenance and repair of telecommunication devices and networks